name of H. Langlassei, a species which we had believed 
constituted a distinct species. The lip showed striking va- 
riation both from £2. lancifoliim and from F.cochleatum in 
being less cochleate and somewhat 5-angled. Further- 
more, the floral measurements were smaller and the calli 
as described were different, but it is nevertheless con- 
specific with H.lancifolium. 
Among the specimens sent by Ostlund were several 
which showed characters intermediate between F.lanci- 
folium and EB. Langtassei. Critical study of the group has 
convinced us that E.lancifolum, EF. Langlassei and the 
Ostlund specimens constitute a single variable species of 
which one extreme (the larger form with a more coch- 
leate lip) is represented by the plate in the Botanical 
Register and the other extreme (the smaller form with a 
less cochleate and more or less 5-angled lip) is represented 
by the E. Langlassei of Schlechter. 
The specimens of the Ostlund collection referred to 
Epidendrum laneifolium show some differences from the 
form illustrated. All, in common with /. Langlassei, 
show a lip which is bicostate at base, that is with a central 
pair of more or less developed ridges or elongated swell- 
ings, while FH. lancifolium, is described as having a lip 
which is tricostate at base. Furthermore, one of the 
Ostlund specimens shows the sharply acute to short- 
acuminate leaves typical of J. Langlassei, whereas the 
others have the blunter more obtuse leaves typical of 2. 
lancifolium. The flowers of the Ostlund specimens are de- 
cidedly smaller than those of H.lancifolium (as illustra- 
ted), but about the same size as those of 1, Langlasset. 
The 5-angled character of the lip seems very variable. 
Mexico, Pavon (Tyre in Herb. Lambert (in Brit. Mus.?)); 
Hort. Loddiges (in Herb. Lindley): States of Michoacan and Guer- 
rero, Campo Morado, Langlassé 1057 (error of Schlechter 1059) : 
State of Guerrero, near Omiltemi, southwest of Chilpancingo. Erik 
[9] 
